Product Overview
Our precision Multi-Cavity Bottle Cap Injection Molds are engineered for high-speed, mass production of plastic closures. Designed to support global beverage, water, edible oil, dairy, chemical, and personal care packaging industries, these molds ensure maximum uptime, tight dimensional tolerances, and ultra-short cycle times (2.5 to 6 seconds) on premium injection molding lines.
Manufacturing, Quality Control and Trust Verification
To ensure immediate plug-and-play production upon arrival at your facility, every mold undergoes a rigorous internal verification process before receiving export clearance:
3D Mold Flow Analysis: Filling, packing, and cooling simulation before steel cutting to eliminate weld lines.
CMM Dimensional Inspection: 100% verification of critical tolerances against your 2D/3D approved drawings.
High-Speed Trial Runs: A minimum of 3-hour continuous dry-run and injection test.
Cooling Circuit Pressure Test: Confirms zero water leakage at high pressure.
Complete Inspection Documents Delivered with Mold:
- Dimensional Inspection Report (CMM Data)
- Material Mill Certificates and Heat Treatment Hardness Records
- Optimal Injection Molding Parameter Setup Checklist
- High-Definition Mold Trial Video and 50+ Physical Sample Caps for Client Lab Approval
Custom Engineering Options
We provide full OEM/ODM customization based on your local market demands and factory automation setups:
Cap Diameter Range: 18mm to 120mm custom closures.
Brand Marketing: Custom logo engraving on replaceable cavity inserts.
Multi-Color/Material: 2-Color or 2-Component cap mold design support.
Mold Base Standards: 100% compatible with LKM, HASCO, or DME standards.
Automation Interface: Fully integrated interfaces for Robot Take-Out, In-Mold Labeling (IML), or automatic Cap Folding machines.
Packaging, Logistics and Lead Time
Protective Packaging: Anti-rust internal coating + vacuum foil wrapping + heavy-duty seaworthy wooden export crate.
Spare Parts Kit: Includes a complimentary kit of critical wearing parts (ejector pins, nozzles, heating bands, O-rings, and springs).
Delivery Terms: FOB, CIF, DDP options with reliable sea, rail, or air multimodal transit.
Typical Lead Time:
- Standard Molds: 35-50 Days
- Customized High-Cavity Molds: 45-75 Days
Main Parameters
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Mold information |
Content |
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Product Material |
ABS,PP,PC,PA,PMMA,PS,POM and etc. |
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Moldbase |
FUTABA,LKM,HASCO,DME you can choose |
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Cavity material |
45#,50#,P20,H13, 718 2738, NAK80, S136, SKD61 etc |
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Gate type |
Side gate,Sub gate,Pin point gate,Edge gate etc |
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Treatment |
Heat treatment and Nitriding,polish ect. |
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HRC |
H45~52 |
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Product weight |
50~5000 K |
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Machine type |
130ton-550ton |
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The standard of appearance of the products for stripe |
MT(Mold Tech),YS,HN series |
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The way of Color contrast |
RAL K7,PANTONE |
The main parts
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Core HRC: 51- 53 Material:Steel 2344 from SCHMOLZ+BICKENBACH Highly glossy surface finish |
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Cavity HRC: 47-49 Material: Stainless Steel 2083 SCHMOLZ+BICKENBACH Highly glossy surface finish |
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Heater Heater striper from B.G.H Germany Stable working,energy saving, Easy changing in the machine |
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Nozzle HRC:80 Material: Tungsten steel |
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Pin HRC 60-63 Material SKD61 Long life time,stable working. |
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Mold Base Plate HRC: 32-34 Material: Stainless steel from FS. 4CR13 China |
Company information
Product lifetime maintenance
Certification
FAQ
Q: How do you guarantee the mold lifespan reaches 5 to 10 million cycles?
A: We use genuine, certified S136 stainless steel (hardened to HRC 48-54) from top-tier global suppliers for all cores and cavities. Combined with robust mold base plates and optimal vacuum heat treatment, our molds resist wear and water-channel corrosion, ensuring stable running for years without precision loss.
Q: Can we run this mold seamlessly on our existing injection molding machines?
A: Yes. Before engineering begins, our design team will request your machine's platen layout, tie-bar distance, injection capacity, and ejector specifications. We customize the mold interface to match your exact machine specs for a plug-and-play installation.
Q: How do you control cap weight consistency across high-cavity molds (such as 48 or 72 cavities)?
A: We utilize a naturally balanced hot runner manifold system where every flow path is mathematically identical in length and volume. Backed by independent temperature zone controls (within plus or minus 1 degree Celsius), this guarantees identical melt density and pressure for every single cavity, keeping weight tolerance within 0.05g.
Q: What is your solution for overseas maintenance and spare parts replacement?
A: All high-wear components, including neck rings, cavity inserts, cores, and ejector pins, are machined using high-precision CNC and EDM to 100% interchangeable tolerances (within plus or minus 0.005mm). We ship a complimentary kit of critical spare parts with the mold. If you ever need replacements later, we can ship parts that fit perfectly without requiring you to send the mold back.
Q: Can one mold produce different cap sizes, or logos?
A: Different cap diameters require dedicated mold cavities due to thread and sealing profiles. However, for logo changes, we design replaceable top inserts. You can switch logos or produce plain caps by swapping only the top inserts on the machine, saving you the cost of a brand-new mold.
Q: How do your molds achieve an ultra-short cycle time of 2.5 to 6 seconds?
A: We engineer customized 3D conformal cooling circuits that follow the exact contours of the cap threads and gate areas. This maximizes heat transfer efficiency, allowing the plastic to solidify up to 20% faster than standard cooling layouts, directly boosting your daily OEE (Overall Equipment Effectiveness).
Q: What specific validation and documentation do you provide before shipping?
A: We never blind-ship. Every mold undergoes a minimum 3-hour continuous dry-run and injection trial. We provide you with full 3D Mold Flow and CMM dimensional reports, final mold trial videos, 50+ physical sample caps for your laboratory testing, and complete 2D/3D editable mold drawings.
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